open3d::utility::random::DiscreteGenerator< T > Class Template Reference

#include <Random.h>

Public Member Functions
template<typename InputIt>
	DiscreteGenerator (InputIt first, InputIt last)
T	operator() ()
	Call this to generate a discretely distributed integer value.

Protected Attributes
std::discrete_distribution< T >	distribution_

Detailed Description

template<typename T>
class open3d::utility::random::DiscreteGenerator< T >

Generate discretely distributed integer values according to a range of weight values. This class is globally seeded by utility::random::Seed(). This class is a wrapper around std::discrete_distribution.

Example:

#include "open3d/utility/Random.h"
 
// Globally seed Open3D. This will affect all random functions.
utility::random::Seed(0);
 
// Weighted random choice of size_t
std::vector<double> weights{1, 2, 3, 4, 5};
utility::random::DiscreteGenerator<size_t> gen(weights.cbegin(),
weights.cend()); for (size_t i = 0; i < 10; i++) {
    std::cout << gen() << std::endl;
}

Constructor & Destructor Documentation

DiscreteGenerator()

template<typename T>

template<typename InputIt>

open3d::utility::random::DiscreteGenerator< T >::DiscreteGenerator ( InputIt first, InputIt last )

inline

Generate discretely distributed integer values according to a range of weight values.

Parameters

first	The iterator or pointer pointing to the first element in the range of weights.
last	The iterator or pointer pointing to one past the last element in the range of weights.

Member Function Documentation

operator()()

template<typename T>

T open3d::utility::random::DiscreteGenerator< T >::operator() ( )

inline

Call this to generate a discretely distributed integer value.

Field Documentation

distribution_

template<typename T>

std::discrete_distribution<T> open3d::utility::random::DiscreteGenerator< T >::distribution_

protected

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The documentation for this class was generated from the following file:

• cpp/open3d/utility/Random.h